EP0364171A3 - Highfrequency heating apparatus using frequency-converter-type power supply - Google Patents
Highfrequency heating apparatus using frequency-converter-type power supply Download PDFInfo
- Publication number
- EP0364171A3 EP0364171A3 EP19890310251 EP89310251A EP0364171A3 EP 0364171 A3 EP0364171 A3 EP 0364171A3 EP 19890310251 EP19890310251 EP 19890310251 EP 89310251 A EP89310251 A EP 89310251A EP 0364171 A3 EP0364171 A3 EP 0364171A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- power supply
- frequency
- heating apparatus
- converter
- type power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP257505/88 | 1988-10-13 | ||
JP25750588A JP2506995B2 (en) | 1988-10-13 | 1988-10-13 | High frequency heating equipment |
JP313151/88 | 1988-12-12 | ||
JP63313151A JP2516413B2 (en) | 1988-12-12 | 1988-12-12 | Power supply for high frequency heater |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0364171A2 EP0364171A2 (en) | 1990-04-18 |
EP0364171A3 true EP0364171A3 (en) | 1991-05-08 |
EP0364171B1 EP0364171B1 (en) | 1994-11-30 |
Family
ID=26543234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89310251A Expired - Lifetime EP0364171B1 (en) | 1988-10-13 | 1989-10-06 | Highfrequency heating apparatus using frequency-converter-type power supply |
Country Status (7)
Country | Link |
---|---|
US (1) | US4977301A (en) |
EP (1) | EP0364171B1 (en) |
KR (1) | KR920006270B1 (en) |
AU (1) | AU604197B2 (en) |
BR (1) | BR8905183A (en) |
CA (1) | CA2000467C (en) |
DE (1) | DE68919640T2 (en) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3928792A1 (en) * | 1989-08-31 | 1991-03-07 | Philips Patentverwaltung | TRANSFORMERS FOR OPERATION INTERMITTING WITH A CLOCK FREQUENCY |
JPH0482191A (en) * | 1990-07-25 | 1992-03-16 | Matsushita Electric Ind Co Ltd | High frequency heater |
EP0505082B1 (en) * | 1991-03-20 | 1995-08-09 | Matsushita Electric Industrial Co., Ltd. | Electric cooking apparatus |
US5392018A (en) * | 1991-06-27 | 1995-02-21 | Applied Materials, Inc. | Electronically tuned matching networks using adjustable inductance elements and resonant tank circuits |
KR940008029B1 (en) * | 1991-06-28 | 1994-08-31 | 삼성전자 주식회사 | Power supply for driving magnetron |
EP0585650B1 (en) * | 1992-08-22 | 1998-01-14 | Robert Bosch Gmbh | Transducer and its application |
US5585766A (en) * | 1994-10-27 | 1996-12-17 | Applied Materials, Inc. | Electrically tuned matching networks using adjustable inductance elements |
FR2730850B1 (en) * | 1995-02-17 | 1997-03-14 | Electro Mec Nivernais | HIGH VOLTAGE TRANSFORMER |
US5629653A (en) * | 1995-07-07 | 1997-05-13 | Applied Materials, Inc. | RF match detector circuit with dual directional coupler |
US5724236A (en) * | 1996-03-05 | 1998-03-03 | Motorola, Inc. | Power converter transformer having an auxilliary winding and electrostatic shield to suppress noise |
JP3726010B2 (en) * | 1999-06-03 | 2005-12-14 | シャープ株式会社 | Step-up transformer for high-frequency heating equipment |
US7477120B2 (en) | 2001-08-13 | 2009-01-13 | Bose Corporation | Transformer shielding |
US6727793B2 (en) * | 2001-08-21 | 2004-04-27 | Astec International Limited | Low-power transformer for printed circuit boards |
JP2004319690A (en) | 2003-04-15 | 2004-11-11 | Matsushita Electric Ind Co Ltd | Step-up transformer for magnetron drive, and transformer unit equipped with it |
DE10322367A1 (en) * | 2003-05-13 | 2004-12-02 | Dreyer, Dietmar, Dipl.-Ing. (FH) | High frequency plasma storage battery for direct energy conversion has cavity resonator with radiation and thermal shield and high frequency magnetic field |
US7495539B2 (en) * | 2006-10-02 | 2009-02-24 | General Electric Company | Filament transformer for X-ray tubes |
JP5809981B2 (en) * | 2009-01-30 | 2015-11-11 | エイチビーシーシー ピーティーワイ リミテッドHbcc Pty Ltd | High frequency transformer |
US8089331B2 (en) * | 2009-05-12 | 2012-01-03 | Raytheon Company | Planar magnetic structure |
TWI402868B (en) * | 2009-05-27 | 2013-07-21 | Delta Electronics Inc | Coil with emi shielding and magnetic device using same |
US8836160B1 (en) * | 2010-09-28 | 2014-09-16 | The Boeing Company | Method and application for vehicle power system isolation |
JP5716394B2 (en) | 2010-12-28 | 2015-05-13 | 株式会社リコー | High voltage inverter device and leakage detecting device thereof |
CN102682968B (en) * | 2012-05-24 | 2015-07-08 | 广安市华蓥山领创电子有限公司 | Ultrathin high-frequency magnetic core transformer and production process thereof |
US9576725B2 (en) * | 2012-12-28 | 2017-02-21 | General Electric Company | Method for reducing interwinding capacitance current in an isolation transformer |
US9520793B2 (en) | 2014-09-22 | 2016-12-13 | Raytheon Company | Stacked power converter assembly |
US10050438B2 (en) | 2015-10-16 | 2018-08-14 | Raytheon Company | Stacked power converter assembly |
US10049810B2 (en) | 2015-11-09 | 2018-08-14 | Raytheon Company | High voltage high frequency transformer |
ES2877111T3 (en) * | 2016-06-10 | 2021-11-16 | Abb Power Grids Switzerland Ag | Refrigeration arrangement |
US10050533B2 (en) | 2016-07-26 | 2018-08-14 | Raytheon Company | High voltage high frequency transformer |
US10672553B2 (en) | 2017-05-10 | 2020-06-02 | Raytheon Company | High voltage high frequency transformer |
CN109631441A (en) * | 2019-01-25 | 2019-04-16 | 中国建筑科学研究院有限公司 | Method and device for efficiently melting cold surface frost layer |
US11694832B2 (en) | 2019-02-01 | 2023-07-04 | Raytheon Company | High voltage high frequency transformer |
CN110831272B (en) * | 2019-09-24 | 2021-01-26 | 广东美的白色家电技术创新中心有限公司 | Microwave oven |
DE202020104578U1 (en) * | 2020-08-07 | 2020-11-05 | Schaffner Emv Ag | Magnetic device |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2155840A (en) * | 1936-07-21 | 1939-04-25 | Ohio Brass Co | Electrical transformer |
US2652521A (en) * | 1949-08-22 | 1953-09-15 | Nu Way Corp | Shield for transformer coils |
US3142029A (en) * | 1960-08-22 | 1964-07-21 | Gen Electric | Shielding of foil wound electrical apparatus |
US3376531A (en) * | 1966-08-26 | 1968-04-02 | Westinghouse Electric Corp | Electrical inductive apparatus with wire cloth shielding means |
US4041364A (en) * | 1975-03-05 | 1977-08-09 | General Electric Company | Electromagnetically shielded electrical converter and an improved electromagnetic shield therefor |
US4089049A (en) * | 1975-06-11 | 1978-05-09 | Sony Corporation | Inverter circuit including transformer with shielding of undesired radiations |
EP0271850A2 (en) * | 1986-12-15 | 1988-06-22 | Matsushita Electric Industrial Co., Ltd. | Power feeding apparatus |
EP0291093A2 (en) * | 1987-05-14 | 1988-11-17 | Matsushita Electric Industrial Co., Ltd. | Stationary induction apparatus |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1638564A1 (en) * | 1967-04-07 | 1970-11-05 | Siemens Ag | Device for shielding stray fields |
JPS5336156A (en) * | 1976-09-16 | 1978-04-04 | Hitachi Ltd | Magnetron unit |
US4305115A (en) * | 1979-03-14 | 1981-12-08 | Harry H. Leveen | Electrostatic shield |
US4318165A (en) * | 1980-04-21 | 1982-03-02 | General Electric Company | Resonant-flyback power supply with filament winding for magnetron and the like loads |
JPS593907A (en) * | 1982-06-29 | 1984-01-10 | Hitachi Ltd | Molded transformer |
US4504812A (en) * | 1983-06-07 | 1985-03-12 | Moermond Donald I | Spherical transformer apparatus |
US4660014A (en) * | 1985-06-19 | 1987-04-21 | Jaycor | Electromagnetic pulse isolation transformer |
KR900008542B1 (en) * | 1986-10-13 | 1990-11-24 | 가부시기가이샤 히다찌세이사구쇼 | Power supply for a magnetron |
-
1989
- 1989-10-06 US US07/417,774 patent/US4977301A/en not_active Expired - Lifetime
- 1989-10-06 EP EP89310251A patent/EP0364171B1/en not_active Expired - Lifetime
- 1989-10-06 DE DE68919640T patent/DE68919640T2/en not_active Expired - Fee Related
- 1989-10-12 CA CA002000467A patent/CA2000467C/en not_active Expired - Lifetime
- 1989-10-12 AU AU42857/89A patent/AU604197B2/en not_active Ceased
- 1989-10-12 BR BR898905183A patent/BR8905183A/en not_active IP Right Cessation
- 1989-10-13 KR KR1019890014701A patent/KR920006270B1/en not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2155840A (en) * | 1936-07-21 | 1939-04-25 | Ohio Brass Co | Electrical transformer |
US2652521A (en) * | 1949-08-22 | 1953-09-15 | Nu Way Corp | Shield for transformer coils |
US3142029A (en) * | 1960-08-22 | 1964-07-21 | Gen Electric | Shielding of foil wound electrical apparatus |
US3376531A (en) * | 1966-08-26 | 1968-04-02 | Westinghouse Electric Corp | Electrical inductive apparatus with wire cloth shielding means |
US4041364A (en) * | 1975-03-05 | 1977-08-09 | General Electric Company | Electromagnetically shielded electrical converter and an improved electromagnetic shield therefor |
US4089049A (en) * | 1975-06-11 | 1978-05-09 | Sony Corporation | Inverter circuit including transformer with shielding of undesired radiations |
EP0271850A2 (en) * | 1986-12-15 | 1988-06-22 | Matsushita Electric Industrial Co., Ltd. | Power feeding apparatus |
EP0291093A2 (en) * | 1987-05-14 | 1988-11-17 | Matsushita Electric Industrial Co., Ltd. | Stationary induction apparatus |
Also Published As
Publication number | Publication date |
---|---|
CA2000467A1 (en) | 1990-04-13 |
DE68919640D1 (en) | 1995-01-12 |
AU4285789A (en) | 1990-05-03 |
DE68919640T2 (en) | 1995-07-06 |
BR8905183A (en) | 1990-05-15 |
EP0364171A2 (en) | 1990-04-18 |
CA2000467C (en) | 1995-10-24 |
EP0364171B1 (en) | 1994-11-30 |
KR900007277A (en) | 1990-05-09 |
US4977301A (en) | 1990-12-11 |
AU604197B2 (en) | 1990-12-06 |
KR920006270B1 (en) | 1992-08-01 |
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